Sucker-rod wrench



July 3, 1928.

T. A. REYNOLDS SUCKER ROD WRENCH Filed March 16, 1927 Z y% I Patented July 3, 1928.

UNITED STATES PATENT OFFICE.

'rn'onas a. nnrnomis, or LOS ANGELES, camronnra STICKER-ROD WRENCH.

Application filed March 16, 1927. Serial No. 175,860.

the principal objects of my invention beingto provide a wrench that'is relatively slmple ,{in construction, inexpensive of manufacture and capable of bein 'easlly and quickly applied to or remove from a sucker rod or the like.

Further objects of my invention are-to provide a wrench of the character referred tothat has a one-piece jaw that is adapted to enga e" the squared portion of a sucker rod an which jaw has pivotally connected thereto, a handle that may be swun a short distance in either direction while reaking or disengaging a sucker rod, thereby enablmg an increased degree of leverage to be 1e applied to the wrench in the rod connectin and disconnecting operations.

ith the foregoing and other objects in View, my invention consists in certain novel features of construction and arrangement of parts that will hereinafter be more fully described and claimed and illustrated in the fieferring by numerals to the accompanying) drawings, which illustrate a practical odiment of my invention, 10 designates a substantially U-shaped jaw having a relatively shortleg 11 and a longer leg 12 and the substantially rectan lar space 13 between said legs is of suc size as to readily receive the square or non-circular portion of a sucker rod section and which square or non-circular portion, it will be under- 45- stnpd, is formed on the rod adjacent to each The end of the short leg 11 of the jaw is referably provided with an inwardly veled'end 14 that facilitates the entrance of the rod into the space 13 within the jaw and formed integral with the outer end of the longer leg of jaw 11, is an arcuate plate 15 in which is formed a curved slot 16.

Screw-seated in arm 12 a short distance inwardly from slot 16, is the threaded portion 17 of a bolt, the same having an enlarged body portion 18 that projects out-- wardly or upwardly from the face of leg 12 and this enlarged body portion of. the bolt serves as a trunnion or axis for the wrench handle 19. This wrench handle is 18 of the bolt and the threaded portion 17 thereof, said shoulder bearing directly against the face of the le 12 of the jaw and the bolt is locked to the eg 12 by means of a counter in 22 that passes through that portlign o the bolt that projects through Arcuate slot 16 is concentric with the axis of the bolt to which the handle is pivotally connected and I.prefer to form the plate 15 so that the same and the arcuate slot 16 extend outwardly from the leg 12 opposite from the side on which the rod receiving notch or opening 13 is formed and thus the handle 19 has a greater swinging movement outwardly from the jaw 10 than toward the side of the jaw in which the opening 13 is formed.

Formed integral with or fixed to the handle 19, is a pin 23 that projects through the arcuate slot 16 and formed inte ral with the end of this pin is a head 24. T e width of this head 1s practically equal to the diameter of pin 23, but said head having greater length-than the diameter of the pin, and said head is arranged so that its length lies parallel with the axis of handle 19.

Thus when the handle and jaw of the wrench are properly assembled, the head 24 of pin 23 lies across or at right angles to the length of slot 16 and in order to assemble the jaw and the handle, the parts must be turned so that head 24 may be inserted 4 through slot 16 and which operation must.

necessarily take place before the end of the handle is pivoted to the end jaw by bolt 18.

In the use of my improved wrench, the jaw 10 is manipulated so that the square portion of the sucker rod is positioned in the opening 13 and by swinging the handle 19 with a quick movement so that pin 23 strikes against the end of the arcuate slot 16, a blow of considerable force may be impressed on the end of the longer leg 12 of the jaw and which blow is of material assistance in starting the breaking or unscrewing of the joint or the tightening up of the joint at the finish of the coupling operations. In other words, by pivotally mountmg the handle on the jaw, the latter ma be hammered by proper manipulation o thevarious parts of my improved sucker rodwrench may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the ap pended claim.

I claim as my invention:

In a sucker rod vrench, a substantially U-shaped integral jaw havin a non-circular opening for the reception 0 a sucker rod, a handle pivotally connected to one of the legs of said jaw and a pin and slot connection between said jaw and handle, said slot being concentrically arranged relative to the axis of pivotal connection between said jaw and handle.

.In testimony whereof I afiix my signa-.

ture.

THOMAS A. REYNOLDS. 

